What should I do before I get pregnant to ensure a healthy pregnancy for me and my baby?

i will suggest you make some very simple yet important changes in your lifestyle if you already have not taken care of these: 1. quit smoking and drinking, and definitely no substances 2. speak to your parents and in-laws to understand about any family medical history as this will help docs be aware if you are at risk of something 3. jot down all the medicines you are currently taking or have recently been prescribed 4. note all recent health issues you may have had 5. start eating healthy and quit or reduce your junk and processed food intake 6. do a basic health checkup for HIV, STDs, thyroid, CBC, RBC and so on 7. start exercising